Improved machine foe outtiig key-seats



@mitch gte-tss getest glitter.

WILLMM n. entre AND connus s. nner, crm-GROSSE, Wisconsin, Assleivons' To frnnMsnLvEs, ssrn DEAN, AND HENRY MERRILL.

Lettera Patent No. 77,225, dated .April 28, 1868.

IMPROVED MACHINE FOR OU'ITING'KEY-SEATS.

To ALL WHoM 1r MAY CONGERN:

Be it known that we, WILLI-AM H. Ssmn and-RoLnrN S. Ennr', oi' 'Le Grosse, in the county of Ln Crosse, and State of Wisconsin, have invented certain new and useful Improvements in Machines for Cutting Key-Seats in wheels, pulleys, Etc.; :ind we do hereby declare that the following is u. full, clear, and exactv description thereof, reference being had tc the accompanying drawings making part of this specification, and tov tho letter-pof reference marked thereon,vlike letters indicating like parts wherever they occur.

'.lo enable others skilled in the nrt to construct and use our invention,""wc will'procecdte describe it.

Our invention teintes to machines for cutting keyXseuts in wheels, pulleys, and similar articles of machinery, and consists in u novel construction and arrangement of mechanism for that purpose. lIn the drawings-.-

Figure is a longitudinal vertical section, on the line :c n: of iig. 3.

Figure 2 is n view of rear elevation. i

Figure 8 is u top plan view.

Figure 4 is o. longitudinal vertical section on the line y y of iig. 3; and

Figure 5 is o transverse verticnl'secticn on the line z z of iig. 3.

In constructing our machine, we make s. hollow cylindrical column, A, with' u. wide slot, a, in front, .extending nearly its entire length, and a narrower and shorter one,'b, in the rear. 'Wit-hin the eolumn'A we place e ruck, B, arranged to move verticuliy, end having' pirated-to its upper end n cutting-tool, C, having a. series of saw teeth on its cutting-edge, and constructedso ns to taper from its upper to its lower endin order that, in

descending, it may feed itself forward in the slot c,'in the pin d, as clearly shown in ig. 1. The slotted pin 11,. through which the cutting-tool C thus mores vertically, we adjust, in any suitalble manner, firmly into the headI lof the column A, as shown in gs. 1, 2, end 3.'

The back side of' theirack B we construct, ns shown lin'flg. 1, so that it vmcy slide in Athe slot l) easily, and' yet be arranged so as to lin-vo only-a verticallmovement, with'o. portion of it projecting outside of the column. A, und hcying rigidly attached to it :in-eye or loop, e, to slide on the rodf, huving two adjustable collars, g g, ns shown in gs. 1 and 2, for c. purpose hereinafter explained.

We mount the shafts g und h in suitable bearings attached to the column A, and inthe standard D, as shown clearly in figs. 2 and 3. The shaft h is above and in the rear of the shaft g, ns shown figs. 1, 2, 3, and if, and at s. suitable distance vfrom one another for the gearing which is to be placed u'pon them. The shaft e extends in front of the slot a, in the'column A, and has rigidly attached to its pinion, E, which gears into the rack B.

Near the opposite end of the shaft h is a. large gear-wheel, F, also rigidly attached, so es to turn at the sume time with the shaft h and the pinion vE.

Between the wheel F and the pinion E we place a sleeve upon the shaft h, and to this sleeve rigidly nttoch the genrwheelG und pinion I, so that they'must turn together.

On the shaft g the wheels are arranged as clearly shown in iig. 5. The hearings, i, of one end oftheshafii g are in the standard D, and the bearings, of the opposite end n re attached tothe columnl A. 4

On the shaft g, und vwithin the bearings j, we place a. sleeve, which extends fur enough on euchv side of the bearings j to receive und have rigidly attached to it theV driving-wheel K und pinion L, which is arranged to geur -into pinion M, which' turns loosely on a. short journal or shaft attached to the column A. The pinion M gears into the wheel G,'as clearly shown in figs. 1 and 2, and is made to move loosely, so es to make the wheel G move in an opposite direction from the pinion L. n

On the other end ofthe shaft g, within and next to its bearings, we rigidly attach the pinion N, which gears linto the wheel F, and ou the s zrne shaft, and next to the pinion N, we 'place the wheel O, so as to turn easily about the shaft.

Between the wheel 0 and pinion L, on the shaft g, we place un adjustable clutch, P, arranged to move longitudinally on the shaft, and provided with n feather, m,which move'sin'u slot, n, in the shaft g, and prevents -in thisV manner .the end of the clutch P opposite that it from turning about the shaft. The clutch P is-made so as to engage rigidly,"by'means of'pins with the pins l, on the wheel O, and also to clutch, byla friction-bearing, with the pinion L, as clearly shown in lig, 5, and which engages with the wheel O is made b'evelling, to lit into a corresponding bevelgioove inthe pinion L, so as to form a friction-clutch with it, as-shown in iig. 5. lBy this means the clutch P is made to engage with the wheel O, when moved in one direction, or with the pinion L,

when moved in the other;

i The clutch Pis operated automatically or'by hand, by means'of an elbowed lever. This lever is clearly shown'inigs. 2 and 4. Its middle shaft, g, is mounted in bearings,p, under the mechanism already described, -and in a lineatright angles with the line-di the shaft g. vAt the` end of the shaft q, directly under the clutch P, is attachedv rigidly a shifter, r, atright angles, vertically, and arranged to operate the clutch, as shown in figa-4 and 5. To the otherend of`.the shaft g is attached rigidly a handle, Q, andot right angles to it, hori zntally and rigidly, an arm, S, which has pivoted to vits opposite end, vertically,tho rod j; which will move `vertically in the guide t, attached to the column A, aslshown in iig's. 1 and'2.`

The rodfis provided with t'wo vadjustable collars, g and y,'whi ch are arranged so as to be operated against by the eye or loop, e, of the rack B,so as lto'move the rodf either up or down. We make the rake ofthe saw-teeth in the cutter C to correspond with the depth it is desired to cutthe keyseat, and just above the point where the cutter C is attached to thc rack B, we fasten a guard, u, which ,catches the chips and'turns them, so that they will run outside ofthe column, and so not interfere with the mechanism. In operating our machine, we place the wheel, pulley, or other articledn which we desire to cut a key-sent, over the cutter C, and down on the'pin nl. We then adjust the collars gvg on therodf, at a distance'apnrt equal to that which we desire' the cutter C to move. The cutter is run upto the end of its upper stroke. lhe

eye or loop, e, ofthe rack B, as it slides up the rodj; strikes against the upper collarhg, raises the rod f, which,"

-by means of the elbow-lev'lir, consisting ofthe arms s, shaft q, and shifter r, throws the clutch P in contact with the wheel 0, which thus becomes locked, through the clutch P, to the shaft g, and receiving motion from lthe driving-pulley or wheel K through the pinion-wheel L, which is rigidly attached to same sleeve with the wheel K, and which` gears into 'the loose pinion M, which gears into the wheel G', which is rigidly attached to the same sleeve with the pinion I, andturns it, and which, gearing into the wheel 0, gives motion to it; andthe wheel O,

being now engagedA withthe clutch P, causes the shaftg to revolve, and with it the pinion N, 'whichis rigidly attachedto the shaft g,'and which', gearing into the wheel F, which is rigidly attached to the shaft It, together with the pinion E, causes the latter to revolve, and, through the rack B, give a downwardmotion to the cutter C, which,`at one stroke, cuts a'neat and well-made seat, of' tho desired depth, in the wheel onthe pin d. v

When the rack B runs down, so that the eye or loop e, on the rodf, comes in contact. with the `collar g", the clutch P isV disengaged from the wheel O, and Ymoved laterally on the shaft g, in an opposite direction, and engages. l-y friction with the pinion L, which, as it moves inan opposite direction from that of the wheel O will cause the shaftg torevolve in an opposite direction, and, consequently, the pinion N, wheel pinion E, and rack B, which willcause the cutterto ascend to the end of its upper stroke.- l i l p In the mean time,vthe wheel having the key-seat cut in it is removed, and another'put in its place, which is now ready to be cut, and thusrthe operation may be continued indefinitely, or until some part ot' themechanism becomes deranged, or the cutter'needs adjustin r or filing. l i

When desired, the clutch P may be shifted by the .handle Q.

'In this operation, ther-.wheels o r pulleys that are having key-seats cut, tit snug on the pin d. It' wheels or pulleys intended fordi`erent-sized shafting are to he key-seated, pins of' corresponding sise must be used.

The cutter C is kept in-an upright position by meansot'a spring, U', or any other suitable device.

In this way we are able to construct a most valuable and eilcient machine for'cutting key-seats in wheels,

' pulleys, or similar articles.

Having thus described our invention, what wefclaim, is 1. In combination with the slottedvpin d, `the cutting-tool C, having its front edge pro-vided with saw-teeth,

and made tapering longitudinally, for the purpose 'of feeding forward in 'descending and cutting a Reyseat,

substantially as described.

2. In combination with-the` reciprocating rack-bar B, the adjustable collars. g' gr', orv their equivalents,

arranged'iwith the shiftingmeohamsm to operate inthe machine, as described, for shortening or lengthening the movement of the cuttingtool C, as set i'o'rth. 3. The guard Uand spring U', in combinationwith the cutting-tool C, whcanrranged as herein described,

and for the purpose set fortbj Y,

` ,v 54,. The. combination of thev pulle'y K and pinio L 'on the same sleeve, the pinion M, wheel G, ond'pinion I.

on thesame sleeve,'wheel Or'and pinion N, wheelFand pinioii E, attached to same shaft, It, rack B and clutch P, all constructed and arranged as described, for- Vthe purpose' of giving a reciprocating motion to the cuttingtopl C, to cut key-seats, as set forth."

WM. H. SMITH, ROLLIN S. EDDY. Witnessesr v Hanau Mazzanti.. Sara DEAN, 

